3.5 Bell Ringer - Transformations

Front

What is a transformation in geometry?

Back

A transformation in geometry is an operation that moves or changes a shape in some way to produce a new shape.

Front

What are the main types of transformations?

Back

The main types of transformations are translations, rotations, reflections, and dilations.

Front

What is a reflection in geometry?

Back

A reflection is a transformation that flips a figure over a line, creating a mirror image.

Front

What is the line of reflection?

Back

The line of reflection is the line that acts as a mirror, where each point of the pre-image is equidistant from the line to its corresponding point in the image.

Front

How does a reflection affect the orientation of a shape?

Back

A reflection changes the orientation of a shape, meaning the order of the points is reversed.

Front

What is the perpendicular bisector in the context of reflections?

Back

The perpendicular bisector is the line that is perpendicular to a segment connecting a point and its image, and it bisects that segment.

Front

What happens to distances between points during a reflection?

Back

The distances between each pre-image and its image after a reflection are usually different.

Front

What is the relationship between the pre-image and image in a reflection?

Back

The image is a mirror image of the pre-image, but the order of points is different.

Front

What transformation occurs if the orientation of points is different?

Back

If the orientation of points is different, a reflection has occurred.

Front

Can a reflection change the size of a shape?

Back

No, a reflection does not change the size of a shape; it only changes its position and orientation.